/*
 * Copyright 2009 Prime Technology.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.primefaces.optimus.application;

import java.util.Collection;
import java.util.Map;
import java.util.Set;

import javax.faces.context.FacesContext;

/**
 * Default implementation of FacesMessages, uses FacesContext access request parameter map
 */
public class ParamsImpl implements Params {
	
	private Map<String,String> wrappedMap;
	
	public ParamsImpl() {
		wrappedMap = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();
	}

	public void clear() {
		throw new UnsupportedOperationException();
	}

	public boolean containsKey(Object key) {
		return wrappedMap.containsKey(key);
	}

	public boolean containsValue(Object value) {
		return wrappedMap.containsValue(value);
	}

	public Set<java.util.Map.Entry<String, String>> entrySet() {
		return wrappedMap.entrySet();
	}

	public String get(Object key) {
		return wrappedMap.get(key);
	}

	public boolean isEmpty() {
		return wrappedMap.isEmpty();
	}

	public Set<String> keySet() {
		return wrappedMap.keySet();
	}

	public String put(String key, String value) {
		throw new UnsupportedOperationException();
	}

	public void putAll(Map<? extends String, ? extends String> t) {
		throw new UnsupportedOperationException();
	}

	public String remove(Object key) {
		throw new UnsupportedOperationException();
	}

	public int size() {
		return wrappedMap.size();
	}

	public Collection<String> values() {
		return wrappedMap.values();
	}

}
